
Material loses its identity every time it changes hands. Nobody records the handoffs.
A mill certifies a heat of metal. A service center cuts it into fifteen orders. A processor changes its properties. A shop receives a box and a PDF. At every one of those steps, someone re-types a number from one document into another — and the link between the paper and the metal is re-made by hand, on trust, with no record that survives the next step.
Heatmark records the handoffs. Each party signs what it knows, when it knows it, and the signatures stay attached to the material as it moves.
THE PROBLEM
Custody-chain attestation for defense material
The certificate is not the problem. The gap between certificates is. A mill test report is a real document from a real issuer. It stops being useful the moment material is cut, re-stocked, re-packed, or re-sold — because nothing in the document says who handled it after the mill did.
Everyone downstream is asked to vouch for something they never saw. A receiving inspector at a prime is handed a certificate from a mill he has no relationship with, forwarded by a distributor he can't audit, for a bar that has been through two processors. He signs anyway. There is no alternative available to him.
The one party that could close the gap is the one nobody asks. The metals service center holds both halves — the original mill certificate and the outbound transaction that binds a specific quantity to a named customer and order. That record already exists in their system. It has never been asked for in a form anyone else can check.

Four signatures. Never one.
Most systems in this space collapse everything into a single "verified" badge held by a single managed key. That badge is worth exactly as much as the weakest thing behind it. Heatmark keeps the signatures separate, because they mean different things.
1. The issuer's signature — the mill, signing what it certified. 2. The supplier's signature — the service center, signing the transaction that binds that certificate to a named customer, order, and quantity. 3. Our check record — signed by us, stating only what we checked and what we found. It is evidence about the documents, not a verdict about the metal. 4. The buyer's disposition — the receiving party, signing what it accepted and on what basis.
THE VALUE MAPPED
Info for each party
FOR SERVICE CENTERS AND DISTRIBUTORS
You already have the record. We're asking what it would take to sign it.
When a heat comes in and goes out to fifteen customers, your system knows which release went where. That fact is the missing link in the entire chain, and right now it dies inside your four walls.
What we'd ask of you: a signed statement that a specific certificate, a specific quantity, and a specific customer order go together. Nothing about margin, nothing about your other customers, nothing you don't already assert on a packing slip.
What you'd get: your certificate packages stop getting kicked back. Your customers stop calling your quality manager to re-confirm heat numbers by phone. And when a prime asks who can demonstrate traceable custody, you are on a very short list.
Right now we are not selling you anything. We are asking to trace ten heats through your process with you, on paper, to find out where identity actually breaks. It takes about an hour of your time.
FOR PRIMES, PROGRAM OFFICES, AND TIER 1s
The flow-down is enforceable. The evidence behind it isn't.
DFARS 252.246-7007 requires a counterfeit-avoidance system. 252.225-7009 constrains where specialty metals may be melted. Both are flowed down through contract language to suppliers who attest compliance in a form nobody can independently check — because the underlying custody record doesn't exist in a checkable form.
Heatmark produces that record: signed, at the point where the knowledge actually lives, graded along eight dimensions so your quality organization can see precisely which part of an assertion is strong and which part is unknown.
What we want from you first is not a purchase order. It's forty-five minutes with a receiving inspector and a supplier quality engineer, watching how a certificate package is actually processed today. We will publish nothing about you and sign whatever you need us to sign.
FOR INVESTORS
Where this actually stands
There are no customers, no pilots, no revenue, and no product. There is a thesis that has been rewritten twice under outside diligence, a boundary we can defend, and a 90-day plan to find out whether the load-bearing assumption is true.
The assumption: that a metals service center will sign a statement binding a certificate to a customer transaction, and that a buyer will pay for the resulting record.
The test: trace ten heats through a real service center, on paper, and measure how much of a receiving inspector's certificate-handling time is clerical reconciliation rather than judgment. Both numbers are knowable within ninety days for under $25,000.
The honest ceiling: metals certificates alone saturate somewhere around $17M in annual revenue at full coverage. That is not the business. It is the proving ground for a record format that extends to every other class of material evidence — and we would rather say so now than have you find it in diligence.
FAQ's
Is this blockchain?
No. No token, no chain, no consensus mechanism, no network effect required before the first record is useful. Digital signatures and an append-only log. The technology has been available for twenty years — the unsolved part is organizational, not cryptographic.
What do you actually claim about the metal?
Nothing. We claim things about the record: who signed what, when, and whether a transaction exists that binds this certificate to this buyer. Physical binding between paper and material is explicitly outside our boundary.
Do I have to give you my supplier/customer data?
No. A service center signs a statement about one transaction. Nothing about pricing, nothing about other customers, nothing beyond what is already asserted on a packing slip.